105MnCr4 Tool Die Steels

105MnCr4 - Specification & Application

Alloyed MnCr steel

Chemical composition(wt.%) of 105MnCr4 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.00 1.10
Si 0.15 0.30
Mn 1.00 1.20
P - 0.035
S - 0.035
Cr 0.70 1.00
Mo - -
V - -

105MnCr4 - Detail

Alloyed MnCr steel

Mechanical properties of grade 105MnCr4

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
989 (≥) 465 (≥) 43 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical properties of grade 105MnCr4

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
879 (≥) 259 (≥) 13 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 123
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
778 622 425

Equivalent Grade

Equivalent Products

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